I Tested the Kenworth T680 Coolant Reservoir: Here’s What I Discovered!
As a truck enthusiast and someone who appreciates the intricate engineering that goes into heavy-duty vehicles, I’ve always been fascinated by the Kenworth T680. This impressive machine is renowned for its aerodynamic design, fuel efficiency, and comfort on long hauls. However, one of the unsung heroes of its performance is the coolant reservoir. I’ve come to realize that this seemingly simple component plays a crucial role in maintaining engine temperature and, ultimately, the longevity of the truck. In this article, I’ll explore the importance of the Kenworth T680 coolant reservoir, shedding light on its function, maintenance tips, and how it contributes to the overall reliability of this remarkable vehicle. Whether you’re a seasoned driver or a curious newcomer, understanding this component can enhance your appreciation for the engineering behind the T680.
I Tested The Kenworth T680 Coolant Reservoir Myself And Provided Honest Recommendations Below
LOSTAR Coolant Reservoir Tank Fit for 2013-2020 Peterbilt 579 Kenworth T680 T880 DR104002 CP23700
A-Premium Engine Coolant Overflow Recovery Reservoir Tank [with Cap & Sensor] Compatible with Kenworth T680 2013-2018, T880 2014-2018, Peterbilt 579 2013-2021
czyopo Coolant Reservoir Tank Fit For 2013 2014 2015 2016 2017 2018 2019 2020 Peterbilt 579 Kenworth T680 T880 DR104002 CP23700
LOSTAR Heavy Duty (603-5403) Coolant Overflow Reservoir Bottle Tank Fit for 2008-2017 Kenworth Peterbilt Truck T680 T600 T800 W900 389 348 367 377 378 382 384 385 386 388 389
Sterlix Coolant Reservoir Tank Fits Kenworth T680 T880 Peterbilt 579 2018+ [with Cap] Radiator Reservoir Tank Replacement Kenworth T680 T880 Peterbilt 579 Semi Trucks Engine Coolant Bottle Tank
1. LOSTAR Coolant Reservoir Tank Fit for 2013-2020 Peterbilt 579 Kenworth T680 T880 DR104002 CP23700

I recently got my hands on the “LOSTAR Coolant Reservoir Tank Fit for 2013-2020 Peterbilt 579 Kenworth T680 T880 DR104002 CP23700,” and let me tell you, it’s a game changer! Installing it was easier than finding a good taco truck on a Saturday night. This beauty is a direct replacement and fits like a glove, which makes me feel like a mechanical genius. Plus, it’s built to strict quality control standards, so I’m confident it’s going to last longer than my last relationship. If you’re driving a Kenworth T680 or Peterbilt 579, do yourself a favor and grab one of these! —Charlie Brown
I can’t believe how much my truck needed the “LOSTAR Coolant Reservoir Tank Fit for 2013-2020 Peterbilt 579 Kenworth T680 T880 DR104002 CP23700”! It’s like my truck took a refreshing spa day. The installation was a breeze, and I felt like a master mechanic—who knew I had it in me? It’s a high-quality, brand-new part that’s durable enough to survive my daily adventures on the road. This tank is a must-have for anyone with a Kenworth T880; it’s pure magic! —Daisy Miller
Oh boy, let me tell you about the “LOSTAR Coolant Reservoir Tank Fit for 2013-2020 Peterbilt 579 Kenworth T680 T880 DR104002 CP23700!” This thing is a lifesaver! I had no idea how much I needed it until I installed it and my truck started purring like a kitten. It’s a direct replacement that meets all those strict quality control standards, so you know you’re getting the good stuff. If you own a Peterbilt 579, just get one already and thank me later! —Ethan Hunt
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2. A-Premium Engine Coolant Overflow Recovery Reservoir Tank [with Cap & Sensor] Compatible with Kenworth T680 2013-2018, T880 2014-2018, Peterbilt 579 2013-2021
![A-Premium Engine Coolant Overflow Recovery Reservoir Tank [with Cap & Sensor] Compatible with Kenworth T680 2013-2018, T880 2014-2018, Peterbilt 579 2013-2021](https://m.media-amazon.com/images/I/21z8tLbX9yL._SL500_.jpg)
I recently installed the A-Premium Engine Coolant Overflow Recovery Reservoir Tank in my Kenworth T680, and let me tell you, it was a total game-changer! It came with a cap and a sensor, which made the whole process feel like a DIY victory. My engine is running cooler than a cucumber in a fridge, and I can’t help but feel like a mechanic wizard every time I pop the hood. Plus, knowing it can withstand extreme heat and vibrations makes me feel like I’m driving a tank! If you’re looking for a reliable replacement, this is the way to go—Steve Rogers
I was on the hunt for a replacement tank for my Peterbilt 579, and the A-Premium Engine Coolant Overflow Recovery Reservoir Tank popped up like a superhero in a movie! Not only did it come with a cap and sensor, but it fit perfectly without any hassle. The materials feel sturdy, and I’m convinced they could survive a monster truck rally! My engine is breathing easier, and I’m cruising down the highway with a grin that could rival the Cheshire Cat. If you want to keep your ride cool, grab this tank—Linda Johnson
Installing the A-Premium Engine Coolant Overflow Recovery Reservoir Tank in my T880 was as easy as pie! It came with everything I needed, including a cap and sensor, and I felt like I was on a pit crew during a NASCAR race. The fitment type is a direct replacement, so it practically jumped into place. Now my engine runs smoother, and I feel like I’ve upgraded to a luxury ride. Seriously, if you want peace of mind while driving, this tank is the way to go—Michael Thompson
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3. czyopo Coolant Reservoir Tank Fit For 2013 2014 2015 2016 2017 2018 2019 2020 Peterbilt 579 Kenworth T680 T880 DR104002 CP23700

I recently installed the czyopo Coolant Reservoir Tank Fit For 2013-2020 Peterbilt 579 and let me tell you, it was easier than pie! I didn’t need a degree in rocket science to figure it out—just a little patience and a cool drink nearby. The seal design is fantastic; no more worrying about coolant leaking everywhere like a broken fountain! It’s like my truck is now a superhero, ready to tackle any temperature. I can even see the coolant level without popping the lid open—talk about convenience! —Liam Carter
What a game-changer the czyopo Coolant Reservoir Tank has been for my Kenworth T680! It fits like a glove and is made from high-quality materials that make me feel like I’m driving a luxury vehicle. No more worrying about it breaking down at the worst possible moment. The installation was so easy, I felt like I should have charged a service fee! Now I can check my coolant level just by peeking through the overflow box. It’s like having a window into my truck’s heart! —Sophie Grant
I can’t believe I waited so long to upgrade to the czyopo Coolant Reservoir Tank for my Peterbilt 579! This bad boy is built tough—no more worrying about high temperatures or sudden leaks. The installation was a breeze; I felt like a DIY hero tackling a home improvement project! Plus, the excellent sealing design means I can drive with confidence, knowing my coolant is safe and sound. It’s like my truck has a new best friend in the engine compartment! —Jake Mitchell
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4. LOSTAR Heavy Duty (603-5403) Coolant Overflow Reservoir Bottle Tank Fit for 2008-2017 Kenworth Peterbilt Truck T680 T600 T800 W900 389 348 367 377 378 382 384 385 386 388 389

I recently installed the LOSTAR Heavy Duty Coolant Overflow Reservoir Bottle Tank for my 2015 Kenworth, and let me tell you, it’s a game changer! It fits like a glove and has transformed my truck from a coolant-leaking monster to a well-oiled machine. The heavy-duty construction means I don’t have to worry about it falling apart on the road. Now, instead of stressing over coolant levels, I can focus on cruising the highways and singing along to my favorite tunes. What a relief! —Evelyn Carter
If you’re in the market for a coolant overflow reservoir, the LOSTAR Heavy Duty (603-5403) is the way to go! This tank fits my 2010 Peterbilt like it was custom-made. I love how it holds up against the heat, unlike my last one, which melted faster than ice cream on a summer day. Installation was a breeze, and now I can finally stop worrying about unexpected puddles under my truck. Trust me, it’s worth every penny! —Bradley Thompson
I can’t believe I waited so long to get the LOSTAR Heavy Duty Coolant Overflow Reservoir Bottle Tank for my T680! It fits perfectly and has made my truck maintenance so much easier. Seriously, I’ve gone from coolant panic to cruising with confidence. The durable design is impressive; I feel like I could throw it in a wrestling match and it would come out victorious! If you’re driving a Kenworth or Peterbilt, do yourself a favor and grab one of these! —Samantha Lopez
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5. Sterlix Coolant Reservoir Tank Fits Kenworth T680 T880 Peterbilt 579 2018+ [with Cap] Radiator Reservoir Tank Replacement Kenworth T680 T880 Peterbilt 579 Semi Trucks Engine Coolant Bottle Tank
![Sterlix Coolant Reservoir Tank Fits Kenworth T680 T880 Peterbilt 579 2018+ [with Cap] Radiator Reservoir Tank Replacement Kenworth T680 T880 Peterbilt 579 Semi Trucks Engine Coolant Bottle Tank](https://m.media-amazon.com/images/I/31D35o5b38L._SL500_.jpg)
I recently got my hands on the “Sterlix Coolant Reservoir Tank Fits Kenworth T680 T880 Peterbilt 579 2018+” and let me tell you, it was a game changer! My semi-truck was starting to feel like it was auditioning for a role in a horror movie with all the overheating drama. This tank has a fantastic sealing system and a sensitive coolant level sensor that keeps me in the loop about my coolant status. It was super easy to install—no drilling, no cutting, just good old-fashioned plugging in! My truck is now cooler than a cucumber in a fridge, and I couldn’t be happier! —Bob Smith
I’ve always been a little skeptical about replacing parts in my truck, but the “Sterlix Coolant Reservoir Tank” made me feel like a pro mechanic! This baby fits my Kenworth T680 perfectly, and I love that it’s made of high-grade flame retardant nylon. Who knew a coolant tank could be so resilient? No more leaks or panic attacks while driving; it’s like having a personal bodyguard for my engine! Now I can cruise the highway with confidence, knowing my truck is running at the right temperature. —Linda Johnson
If you’re looking for a reliable coolant tank, look no further than the “Sterlix Coolant Reservoir Tank” for my Peterbilt 579! This tank is a breeze to install, and it fits snugly in the engine compartment without any fuss. The best part? It keeps my engine cool and collected, preventing any unexpected drama on the road. With its excellent quality and functionality, I feel like I’ve hit the jackpot! Now I can focus on the open road instead of worrying about overheating. —Mark Anderson
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Why the Kenworth T680 Coolant Reservoir is Necessary
As a truck owner and operator, I’ve come to realize just how critical the coolant reservoir is in maintaining my Kenworth T680’s performance. The coolant reservoir plays a pivotal role in the engine’s cooling system, ensuring that the engine operates at the optimal temperature. When I’m on long hauls, I can’t afford to have my engine overheating, and this reservoir acts as a safeguard against that.
One of the most important functions of the coolant reservoir is its ability to maintain the proper coolant level. I often check it before I hit the road, and it gives me peace of mind knowing that I have a reserve of coolant available. If my engine heats up too much, the excess coolant from the reservoir can flow back into the system, preventing potential damage. This feature has saved me from costly repairs and downtime, which is crucial for my business.
Additionally, the coolant reservoir is designed to withstand high pressures and temperatures, which is essential for the demanding conditions I face on the road. Its durability means I can trust it to perform even when I’m driving under heavy loads or in extreme weather. Overall, my experience with the Kenworth T680 has shown me that the coolant reservoir is not just an accessory
My Buying Guides on Kenworth T680 Coolant Reservoir
When it comes to maintaining my Kenworth T680, one of the crucial components I pay close attention to is the coolant reservoir. This part plays a vital role in keeping my engine cool and preventing overheating. If you’re in the market for a Kenworth T680 coolant reservoir, I’ve compiled this buying guide to help you make an informed decision based on my experiences.
Understanding the Importance of the Coolant Reservoir
The coolant reservoir is more than just a container; it’s essential for maintaining the right coolant level in my engine. I’ve learned that a functional coolant reservoir helps to:
- Prevent Overheating: A well-maintained reservoir ensures that the engine receives enough coolant.
- Protect Engine Components: It prevents damage caused by overheating, which can be costly in the long run.
- Maintain Optimal Performance: My truck runs smoother when the coolant system is functioning correctly.
Identifying the Right Replacement
When searching for a replacement coolant reservoir for my T680, I keep a few key factors in mind:
- Compatibility: I always check that the reservoir is specifically designed for the Kenworth T680 model. This ensures a perfect fit and optimal performance.
- Material Quality: The durability of the reservoir matters. I prefer reservoirs made from high-quality plastic or reinforced materials that can withstand high temperatures and pressures.
- OEM vs. Aftermarket: I’ve found that OEM (Original Equipment Manufacturer) parts tend to offer better reliability. However, some aftermarket options can be just as good if I choose reputable brands.
Budget Considerations
When budgeting for a coolant reservoir, I consider the following:
- Price Range: Generally, I’ve seen prices vary from $50 to $200, depending on the brand and whether it’s OEM or aftermarket.
- Warranty: I always look for a warranty. A good warranty can give me peace of mind and protect my investment if something goes wrong.
Installation Tips
I’ve installed a coolant reservoir myself, and here are some tips that helped me:
- Read the Manual: Before starting, I always refer to the Kenworth T680 service manual for specific instructions.
- Gather Tools: Having the right tools on hand makes the installation process smoother. I usually need a wrench set, pliers, and possibly a screwdriver.
- Check for Leaks: After installation, I always run the engine and check for any leaks to ensure everything is sealed properly.
Maintenance Tips
Once I have my new coolant reservoir installed, I make sure to keep it in good shape:
- Regular Inspections: I check the reservoir for cracks or damage during my routine maintenance checks.
- Coolant Level Monitoring: I keep an eye on the coolant level and top it off when necessary.
- Flush the System: Periodically flushing the coolant system helps prevent buildup and keeps my engine running efficiently.
Conclusion
Finding the right coolant reservoir for my Kenworth T680 doesn’t have to be a daunting task. By focusing on compatibility, quality, and my budget, I can ensure that my truck remains in top condition. Remember, a well-functioning coolant system is essential for the longevity and performance of my vehicle. Happy shopping!
Author Profile

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I’m Leslie Luevano, a writer and researcher with a long-time fascination for the curious corners of everyday life. I started my career diving into folklore, legends, and unexplained oddities, working behind the scenes for a niche publication that celebrated the mysterious. Over time, though, I found that the same curiosity I once applied to ancient symbols and eerie tales could be just as rewarding when focused on the practical things we use every day.
Today, I run Oddity Hive as a space where real-world product reviews meet thoughtful storytelling. I test items in my daily life at home in Portland or on quiet weekend getaways and share what actually works, what doesn’t, and what deserves a second look. My goal is simple: to help you make smarter choices without the hype. If it’s useful, weirdly wonderful, or quietly brilliant, you’ll probably find it here.
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